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2021 Oct 199-01 test preparation

Q51. Which statements are true regarding the default methods by which load-balancing takes place in the Interceptor appliance. (Select 2)

A. The Interceptor appliance uses round robin, for each TCP connection, regardless of source or destination IP address, and is equally load-balanced between a group of Steelhead appliances

B. The Interceptor appliance uses round robin, for each TCP connection, depending on source IP address, and is equally load-balanced between a group of Steelhead appliances

C. The Interceptor appliance uses hash assignment, for each TCP connection depending the hash value calculated from source and destination IP address, and is directed to a particular Steelhead appliance in the local cluster

D. The Interceptor appliance can dynamically determine and direct traffic for optimization to the least-loaded Steelhead appliances based on Steelhead appliance resource usage

E. The Interceptor appliance uses peer affinity, a Steelhead appliance in the local cluster that has been previously paired with a destination IP address is preferred

F. The Interceptor appliance uses peer affinity, a Steelhead appliance in the local cluster that has been previously paired with a remote Steelhead appliance is preferred

Answer: DF


Q52. You are configuring HighSpeed TCP in an environment with an OC-3 (155Mb/s) and 60 milliseconds of round-trip latency. You know that the rule of thumb is to set the Steelhead appliance's WAN Default Send Buffer Size and WAN Default Receive Buffer Size to 2*BDP for the link. The buffer size setting for this link would be closest to: (Hint: Use the calculator)

A. 4,665,000 bytes

B. 9,330,000 bytes

C. 3,110 bytes

D. 6,220 bytes

E. 2,325,000 bytes

Answer: E


Q53. Peer affinity is most closely related to:

A. Parallel Interceptor redirection based on Sport ID and client IP

B. Serial Interceptor redirection based on Sport ID to server

C. Segstore ID Steelhead mapping based on Sport ID of Steelhead appliances

D. The shipyard from which Riverbed is most likely to ship Interceptors

Answer: C


Q54. In a server-side out-of-path deployment, the server-side Steelhead appliance connects to the network via which physical interface:

A. LAN0_0

B. Primary

C. Auxiliary

D. WAN0_0

Answer: B


Q55. Regarding the registering of Steelhead appliances,

A. Local appliances (on the same IP subnet) are automatically registered every time because their 10-byte probe is intercepted by the CMC appliance

B. Remote appliances are registered when a fixed-target rule is applied to the appliance directing it to the CMC appliance

C. Remote appliances are registered by proxy via the server-side Steelhead appliance

D. Remote appliances are registered manually when they have not auto-registered with the CMC appliance

E. Local appliances can only be registered manually, since fixed-target rules may only be applied to remote Steelhead appliances

Answer: D


Far out 199-01 exam prep:

Q56. For a new connection, a Load Balancing rule matches but none of the target Steelhead appliances in the rule are available. What will happen to the new connection?

A. The connection is passed through

B. The next rule in the list is examined

C. The Interceptor appliance triggers an alarm

D. The Interceptor appliance discontinues redirecting any new connections and places this rule in admissions control

Answer: B


Q57. The primary data center Interceptor is configured to fail-to-block. What best describes the result of stopping the Interceptor appliance service?

A. All traffic passes through the Interceptor appliance

B. The Interceptor allows UDP traffic to pass-through, but blocks all TCP traffic

C. Previously optimized connections continue to be redirected, but new TCP connections are passed through

D. All traffic through the Interceptor will be blocked

E. The Interceptor appliance communicates to the Steelhead appliances to disable their optimization service

Answer: D


Q58. A customer's network consists of a data center with an Interceptor appliance and a Steelhead appliance cluster and several remote sites each with Steelhead appliances.

You would like to pass-through an application unoptimized due to a suspected problem and are provided the following information:

The application uses a static TCP port, 15000.

The application is initiated from the remote site machines.

The same servers which host the application host several other applications as well.

Based on the information provided which option will allow the application to pass-through:

A. Configure in-path rules on the Interceptor appliance to pass-through destination TCP port 15000

B. Configure in-path rules on the data center Steelhead appliances to pass-through the server IP addresses

C. Configure a peering rule on the Interceptor appliance to pass-through destination TCP port 15000

D. Configure a load-balancing rule on the Interceptor appliance to pass-through destination TCP port 15000

E. Stop the Interceptor appliance service

Answer: D


Q59. What are the four types of policies on a CMC appliance?

A. Networking, Optimization, Software, System

B. Networking, Optimization, Rules, System

C. Networking, Optimization, Security, System

D. Networking, Acceleration, Security, System

Answer: C


Q60. On the Interceptor appliance, what are the possible filter settings on a load balancing rule? (Select

4)

A. Source Port

B. Source IP Subnet

C. Destination IP Subnet

D. Destination Port

E. VLAN ID

Answer: BCDE